W Boson Production Cross Section at the Large Hadron Collider with O({alpha}{sub s}{sup 2}) Corrections
- Department of Physics and Astronomy, University of Hawaii, 2505 Correa Road, Honolulu, Hawaii 96822 (United States)
We compute the O({alpha}{sub s}{sup 2}) QCD corrections to the fully differential cross section pp{yields}WX{yields}l{nu}X, retaining all effects from spin correlations. The knowledge of these corrections makes it possible to calculate with high precision the W boson production rate and acceptance at the CERN Large Hadron Collider (LHC), subject to realistic cuts on the lepton and missing energy distributions. For certain choices of cuts we find large corrections when going from next-to-leading order (NLO) to next-to-next-to-leading order in perturbation theory. These corrections are significantly larger than those obtained by parton-shower event generators merged with NLO calculations. Our result may be used to assess and significantly reduce the QCD uncertainties in the many studies of W boson production planned at the LHC.
- OSTI ID:
- 20775275
- Journal Information:
- Physical Review Letters, Vol. 96, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.96.231803; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
QCD corrections and nonstandard three vector boson couplings in {ital W}{sup +}{ital W}{sup {minus}} production at hadron colliders
Next-to-leading-order supersymmetric QCD corrections to the tbH{sup -} associated production at hadron colliders